Fluval Foam Filter Block A226 - For 404/405/406 12-Pack - Retail OEM</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Convenient 12 pack; (6) 2 pack</li><li>Provides mechanical filtration of large particles</li><li>Prevents premature clogging</li><li>Enhances biological filtration</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51p4wCjxH4L.jpg' noproxy></br>